Abstract
The study is based on wind power tower drum with Q345E low alloy steel weld detection of magnetic memory method, combining with the characteristic of X-ray photos of magnetic memory formation mechanism and made a detailed analysis. By doing this, it aims to show that increasing scan device on the number of channels, can to a certain extent, improve the accuracy of detection. Magnetic memory method is proved to be able to predict the nondestructive testing artifacts of the early damage and the possibility of micro crack germination to some extent. It shows that the weld seam can be quickly found dangerous parts by using the magnetic memory test full scan, coupled with the X-ray testing technology for defects, and it also can be further qualitative and quantitative and significantly improve the detection efficiency.
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